Home / 385,647.35-532,130.04-242,305.88

Finding the Fourth Proportional to 385,647.35, 532,130.04 and 242,305.88

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Solution

The fourth proportional to 385,647.35, 532,130.04 and 242,305.88 is: 334,342.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,647.35 : 532,130.04 = 242,305.88 : x
  2. Step 2: Convert to fraction form
    385,647.35/532,130.04 = 242,305.88/x
  3. Step 3: Cross multiply
    385,647.35x = 532,130.04 × 242,305.88
  4. Step 4: Simplify right side
    385,647.35x = 128,938,234,955.99
  5. Step 5: Solve for x
    x = 128,938,234,955.99/385,647.35
  6. Step 6: Final answer
    x = 334,342.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.